what software does this place run?

What software is the macrumours frontend? its vbulletin at the back of course.. but at the front? I really like how the front is integrated well between the mediawiki and the blogs on the front few pages, what did you guys use to achieve this?

MacRumors attracts a broad audience
of both consumers and professionals interested in
the latest technologies and products. We also boast an active community focused on
purchasing decisions and technical aspects of the iPhone, iPod, iPad, and Mac platforms.